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-Dominant- [34]
3 years ago
7

The pulse rates, in beats per minute, for some students of a class are shown below:

Mathematics
1 answer:
Crazy boy [7]3 years ago
7 0

Answer:

Put another dot on 79

Step-by-step explanation:

Because the plot shows that 79 must have 4 dot.So you need to add one more dot

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How do u simply 2x=22<br> Confused about this one .
abruzzese [7]

44     22 + 22 equals 44

         

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D%20-%2014x%20%2B%2024" id="TexFormula1" title="2x^{2} - 14x + 24" alt="2x^{2} - 14
s344n2d4d5 [400]

Answer:

Factorized

      =(2x-8)(x-3)

Roots : 4 , 3

Step-by-step explanation:

If it is to factorize :

2x^2 - 14x + 24 = 2x^2 -6x-8x +24

                     =2x(x-3)-8(x-3)\\=(2x-8)(x-3)

If it is to solve for x :

2x^2 -1 4x + 24 = 0\\(2x-8)(x-3)=0\\2x - 8 = 0 \ , \ x - 3 = 0\\2x = 8 \ , \ x = 3\\x = 4 , 3

6 0
3 years ago
When 4 is subtracted from 5 times a number, the result is 16. what is the number?​
Deffense [45]
4
5x - 4 = 16
Add four to both sides
5x = 20
Divide both sides by 5
x = 4
4 0
3 years ago
Read 2 more answers
Choose the equation you would use to find the altitude of the airplane. tan70 = 0 tan70 = sin70 =
KonstantinChe [14]
The situation is represented by a drawing with a right triangle where an airplane is at the top corner, the elevation angle (opposite to the airplane) is 70°, the height (vertical leg) is x, and the adjacent leg (horizontal leg) to the 70° angle is 800.

Then, to find the height x, which is the opposite leg to the angle,  you can use the tangent ratio, which is opposite leg divided by adjacent leg:

tan(x) = opposite leg / adjacent leg => tan(70°) = x / 800

Answer: tan(70°) = x / 800
7 0
3 years ago
Z is twelve less than the sum of x and y
Furkat [3]
X+y-12=z
EXPLANATION:
7 0
3 years ago
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